I think most people are sensible enough to put things to the test in their own systems or will take the risk on some equipment that seems to get consistent, positive remarks from fellow users and professional reviews. And, to the extent the manufacturer is a direct seller, an unfettered right to return for refund within a limited time is essential in my estimation ( a modest repacking charge would be ok with me).
Safe to say, there are few posts of the purported guru that go unchallenged here, right? And if you are here for a while, you can sort the informative from the hype.
I recognize that there are certain rifts or areas of disagreement that probably won’t be bridged. At that point, it’s pick your preference.
I’ll obviously pay more attention to a post from someone who had long term ownership experience and has made considered comparisons, rather than flavor of the month or hype or techno-speak. (Not to say there isn't science and technology behind some of this but the harder it is to decipher, the less likely I am to be persuaded. Perhaps I'm technically less astute than some here, but I do defer to those with solid knowledge in circuits, electrical, etc. and they are pretty well known here).
I think people generally have more sense than we give them credit for, at least when it comes to spendy stuff and their own funds. User preference/bias still remains an issue, even if someone has no agenda.
In my career, the more I did, the less certain I was about certain things. It’s healthy to have the conventional wisdom challenged occasionally. Nothing is as easy as it appears.